Feeding device and brake for sound-reproducing machines.



- x P. SHEPPY. FEEDING DEVICE AND BRAKE FOR SOUND BBPBODUGING MACHINES.APPLIOATION FILED. MAY 27, 1907.

99,253 Patented July 27, 1909.

2 SHEETS-SHEET 1- WF NEEEEE F. SHEP P Y. FEEDING DEVIGE AND BRAKE FORSOUND REPRODUGING MACHINES.

APPLICATION FILED MAY 37, 1907. 4

Patented Jul 27,1909.

2 SHEETS-SHEET z.

WITNEEEEEE WWW? v s'rArEs PATENT OFFICE.

FREDERICK snnrrv, or onIcAco; ILLINoIs, AssIeNoR, BY MEsNE ASSIGNMENTS,TO HAW- THORNE & SHEBLE MANUFACTURING COMPANY, or PHI ADELPH A,PENNSYLVANIA,

' A CORPORATION OF PENNSYLVANIA.

FEEDING. DEVICE AND BRAKE FOR SC"UND'-REPRUDUGING Specification ofLetters Patent.

Patented July 27, 1909.

Application filed May 27, 1907. I Seria1No. 375,817.

To all whom it may concern:

Be it known that I, FREDERICK SI-IEPPY, a subject of the King of GreatBritain, residing at Chicago, in the county of Cook and State oflllinois, have invented certain new and useful Improvements in FeedingDevices and Brakes for Sound-Reproducing lllachines, of. which thefollowing is a specification.

My inventionrelates to. sound reproducing machines and has specialreference to devices for automatically stopping the move: ment of therecord simultaneously with the completion. of the reproduction. Myappliance is especially applicable to that. class of apparatus commonlytermed talking machines, the appliance itself being known as alorake. I

A very serious disadvantage encountered while operating any form oftalking machine is the inability to judge properlyof the exact momentwhen the sound reproduction will cease. This fact requires that thereshould be aconstant supervision of the mechanical movements and evenwhen close attention is given thereto it is found difficult to terminatethe movement of the record synchronously with the cessation of the soundproduction. l

The chief objects of my invention are to provide a brake for talkingmachines that will automatically stop the record movement by frictionalcontact of the brake member therewith at the termination of the soundreproduction; to provide an automatic record brake for talking machinesthat can be readily attached to the instrument without disfiguring thecasing or marring the finish in any way; and to produce an ctl'ectiveautomatic brake for the purpose stated that is so designed that it willbe equally eli'eclive when applied to instruments of dili' rent Sizes.

I accomplish the above and other minor objects by the employment of theapparatus illustrated in the accompanying drawii'igs which form a partof this specification, and in which:

Figure 1 is a side elevation of a talking machine with my improvedautomatic brake attached thereto; 'Fig. 2 is a plan view with a portionof the swinging arm broken away lodisolose the parts of the. mechanismbcneath; Fig. 3 is a plan view showing the brake-shoe in engagement withthe periphcry of the record-disk, the stylus having been-disengaged fromthe record groove Fig. e is a front view of a sound reproducinginstrument showing method of attaching the automatic brake, and Fig.fi'isu'perspective view of the clip forsupporting the brake lever.

Referring to the drawings in detail, the numeral IO'iudicates the casingof a talking machine, and 11a record-disk which is held by the end of.the motor driven shaft 12 concentric with the table 18 in the usualmanner. l he usual arm support 14., fixed to a plate -15is securedintheordinar-y way t-o'the casinglO by screws 16. The. horn=or swingingarm 1 is of the common form and carries a sound box from which projectsa needle'or stylus 18 adapted to engage the spiral, sound groove of therecorddisk 11.

A bracket 19 is furnished with a slot '20 adapted ,to receive one of thescrews 16, by means of which the bracket is removably 'at tached to theinstrument, the said slot permitting a vertical adjustment. QA clip 21is secured to the horizontal arm of the bracket 19 by a screw/ 22provided with a winged nut 52?), said screw passing through a slot 2 inthe lower arm of saidclip. The upper arm 24 supports a brake lever whichis pivotally connected to said arm by a pivot screw 26.

Near the middle of said brake lever 25 is attached a short horizontalarm 27 scour d 'by a screw 28. Upon this arm rests a plate ilthaving aslot 30 through which passes a screw 31 to secure said plate to the arm27. The plate 29 carries a lever 32 the tree extremity of which restsupon a detent arm 33 fixed to the lever 25, the margin of said lever 32engaging notches 34 in the detent arm. A finger 35 depends from a ringor band 5"?) which encircles the-horn 17, said linger serving as a guideto control the brake lever. the latter being held in yielding contactwith said guide 35 by a coiled spring 37 which is attached at one end toa pin 3% depending from the under side of the lever 25, and at the otheris secured to the t'rcecnd otan adjustublc linger 53f thcrfixcd cnd 4t)oi saidfiin gcr bcingbent in a sharp curve and sccurcdito lib theupright portion of the clip 21 by a screw The parts of the device havingbeen as sembled upon the bracket 19, to attach the brake to aninstrument it is only necessary to remove one of the screws 16, andapply the bracket to the plate 15 in themanner shown in the drawings,and attach the ring 36 carrying the operating finger 35 to the swingingarm 17. The slot 20 will permit of sufficient vertical adjustment tosuit all sizesof instruments and the slot 23 in the clip. 21

will accommodate the lever 25-to' the various diameters of record disks.When the needle 18 engages the sound groove near the outer margin oftherecord disk as'illustrated in Fig. 2, the finger '35 will engage thebrake lever 25 at some point beyondthe arm 27, and the finger-supportingring 36 must be placed in such a position upon the arm 17 that thefinger -35 will exert ,sufiicient pres sure against the brake lever'tomaintain a slight interval betweenthe brake shoe and the peripheral faceof the turn table 13.

With the ordinary type of talking machine the reproducing needle throughits engagement with the sound groove carries the sound box over the faceof the record causing more wear upon the outer bank of said sound groovethan upon the inner banks In the device under consideration, however,the lever 25, which is pressed against the finger 35 by the spring 37causes the-needle 18 to exert a force against the inner bank of thesound groove, The said spring can be so adjusted as to overcome theinward pressure thereby centralizing the needle in the record groove andproducing equal wear upon both banks of the sound groove which has theeffect of prolonging the life ofthe record.

While the needle is being propelled toward the center of the record, thefinger 35 will move along the margin of the lever 25 and there will be aslight movement of the said lever upon its center, such movement beingdue to the angle at which the brake arm is set against the movement ofthe swinging arm. As soon as the needle has reached the terminus of thesound groove, however, it is released from the confining walls of the,

groove, and rides upon the plain portion ofthe record and is free toswing quickly inward from the pressure of the spring37 against thefinger 35 attached to the swinging arm. The finger will now rest againstthe arm 27 which forms a. stop therefor and holds the needle 18 at thedesired location upon the blank portion of the record. Under ordinaryconditions a thumb brake is used to start or stop the revolutions of theturn table, but the necessity for such brake is entirely obviated by theuse of tliis improved form of braking device.

I At certain times during the "operation of the machine andespeciallywhen changing the needle, the sound box is -carried oute"wardly away fromthe record so that the needle is entirely-disengagedfrom the sound groove. Under these conditions the curvedpoi'tion of thedistal end of the lever 25 will re'cede'from the path ofthe finger 35-sufiie ciently' to permit the opposite end of said lever carrying thebrake shoe to enga e the periphery of the turn table with su cient.force to'stopits movement. When the sound ban is again moved intoengagement with Jthe.record to be played, the finger135 will impingeagainstthat portion of the said lever which-lies adjacent to the stop 27thereby ;releasing the turn table and permitting the iecord-to revolve.

'It will be understood that the replacement ,of the needle in its'initial position at the ,beginnin intermediate point upon the recordwill of the record groove,or at any Causet-he brake lever to be restoredto its first position through the engaging action of the finger .35, andthe brake. shoe will be removed from contact with the disk.

The function of the lever 32 is to change the path of the finger 35 whendisks of different diameters are used, the end of said lever beingchanged from one notch to the other according-to the size of. the diskemployed.v

It 'is ev1dent that "many changes may be made in the devices of myinvention as herein disclosed without departing from the spirit andscope thereof, and I do not wish, therefore, to be limited to theprecise construction set forth.

Having thus described my invention what- I claim is 1. A talking-machinehaving a motor-box, a turntable, a sound-conveying tube pivotallymounted on the motor-box, a. lever pivotally mounted on the motor-box,resilient means for moving said lever in one direction during and .inaccordance" with the movement of said tube, and a brake for theturntable operated by said lever.

2. A talking-machine having a casing, a sound-conveying tube pivotallymounted thereon, a member secured to said casing.

means for adjusting the position of said member, a-brake lever pivotedto said member,- a spring for moving said lever in one direction and afinger removablysecured to position of said bracket, a brake leversupported on said bracket and adapted to frictionally inovably attachedto the soundconveying 5 tnbe'and en aging said brake lever and a stopfor sai finger carried by said brake lever, substantially asset forth.4. A talking machine having a casing, a sound-conveying tube pivotallymounted 1G thereon, a turn-table, a bracket removably secured to saidcasing, means for adjusting said bracket, a brake lever pivoted to saidbracket, means for adjusting said brake lever relative to the bracket,an adjustable spring 15 connected to said lever, a finger detachablyconnected to said sound-conveying tube and coacting with said lever, astop for saidfinger carried by the brake lever, and means for adjustingthe position of said stop, sub-" sta-ntially as described.

5. A talking-machine having a motor-box, a turntable, a' sound-conveyingtube pivotally mounted on the motor-box, a lever coacting with saidtube, nieans for permitting an adjustment of the position of said lever,a spring for moving said lever in one direction during and in accordancewith the movement of said tube, and 'a brake for the turntableoperatedby said lever.

30 6. A talk ng-machine having a motor-box,

a: turntable, a sound-conveying tube pivot-v ally mounted on themotor-box, a lever coacting with said tube, a stop on said lever, aspring for moving said lever in one direction during and in accordancewith the movement of said tube, and a brake for the turntable operatedby said lever.'

7. A talking-machine having a motor-box, a turntable, asound-conveyingvtube pivota'lly mounted on said box, a bracketadjustably mounted on the box, a lever pivoted on said bracket andadjustable thereon, said lever 'coacting with said tube, a spring .formoving said lever in one direction during and in accordance with themovementof said tube, and a brake for the turntable operated bysaidlever.

8. In a sound reproducing machinethe combimition with a record carryingbody, a'

coinininnis spiral groove on said body adapted to contain the record, astylus adapted .to pass over said record and to. be guided by saidgroove in a predetermined direction; of \iolding means'ada n ed to movesaid stylus over said record in said direction in cooperation with thegroove, and to continue engage said turn-table, a'finger re-.

it has left said 111g means operatively connected with said,

arm adapted to move said box over said record in said direction incooperation with said groove, and to continue to movesaid 'stylus afterit has left said groove.

10. In a sound reproducing machine'the combination with a record table,a record carrying body on said table, a continuous spiral groove on saidbody adapted to contain the record, a stylus adapted to pass over saidrecord and to be guided by sald groove, in a predetermined direction,means for supporting said stylus adapted to move with said stylus, and astop member for said table adapted to be operated by the movement "ofsaid supporting means, after thestylus has passed said record; ofyielding means adapt; ed to move said stylus over said record in saiddirection in cooperation with said groove and to-continue to move saidstylus after it has left said groove to operate stop member.

11. In a sound reproducing machine the combination with a record table,a record carrying body on said table, a continuous spiral groove on saidbody adapted to contain the record,a sound box adapted to pass over saidrecord and to-be guided by said groove in a predetermined direction, anarm supporting said sound box at one end and suitably lvoted at theother end, and a stop member ii)! said table adapted to be operated bythe movement of said arm, atter said box has passed over said record, ofa spring operat vely connected with said arm adapted to move said boxover said record in said direction in cooperation with said groove andto' continue moving said box after leaving said groove tooperate saidmember.

In testimony whereof l af'ix my signature in the presence of two Willsses.

FREDERICK SH E P? Y lVitnesses:

C. 13. BENJAMIN M. A. Minoan.

